Final answer:
A sexually transmitted infection (STI), such as chlamydia or gonorrhea, is commonly associated with the symptoms of burning during urination and a creamy white penile discharge in a 9-year-old boy.
Step-by-step explanation:
The medical condition commonly associated with the symptoms of burning during urination and a creamy white penile discharge in a 9-year-old boy is sexually transmitted infection (STI). Specifically, these symptoms are often seen in STIs such as chlamydia and gonorrhea.